#!/bin/bash
# Void Linux unattended-friendly installer for the XPS 17 (xps9700).
# Runs inside the Void live ISO. Reads /etc/installer-secrets.env for passwords
# and /usr/local/share/installer/install.conf for everything else.

set -Eeuo pipefail

# Resolve the real script path so this works whether invoked directly or via
# the /usr/local/sbin/install-void symlink.
INSTALLER_DIR="$(cd "$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")" && pwd)"
SHARE_DIR="${INSTALLER_SHARE_DIR:-/usr/local/share/installer}"

# shellcheck source=lib/common.sh
source "$INSTALLER_DIR/lib/common.sh"

# ---------- load config ----------
CONFIG_FILE="${CONFIG_FILE:-$SHARE_DIR/install.conf}"
[[ -r "$CONFIG_FILE" ]] || die "config file $CONFIG_FILE missing"
# shellcheck disable=SC1090
source "$CONFIG_FILE"
log "loaded config from $CONFIG_FILE"

# Drop-in overrides (used by the QEMU test harness).
if [[ -d "${CONFIG_FILE}.d" ]]; then
    for f in "${CONFIG_FILE}.d"/*.conf; do
        [[ -r "$f" ]] || continue
        # shellcheck disable=SC1090
        source "$f"
        log "loaded override $f"
    done
fi

PKG_LIST_FILE="${PKG_LIST_FILE:-$SHARE_DIR/packages.list}"
export PKG_LIST_FILE
[[ -r "$PKG_LIST_FILE" ]] || die "packages.list $PKG_LIST_FILE missing"

# ---------- profile ----------
PROJECT_DIR="${PROJECT_DIR:-$SHARE_DIR}"
PROFILES_DIR="${PROFILES_DIR:-$SHARE_DIR/profiles}"
export PROJECT_DIR PROFILES_DIR
# shellcheck source=lib/profiles.sh
source "$INSTALLER_DIR/lib/profiles.sh"
load_profile || die "could not load profile '${PROFILE:-stable-cinnamon}'"
# Profile may override the package list.
[[ -r "$PROFILE_PACKAGES_FILE" ]] && PKG_LIST_FILE="$PROFILE_PACKAGES_FILE"
log "using packages list: $PKG_LIST_FILE"

load_secrets

# ---------- pre-flight ----------
require_root

# Default DEFAULT_ROOT_PART/EFI from config; will be confirmed/overridden by TUI.
ROOT_PART="${ROOT_PART:-$DEFAULT_ROOT_PART}"
EFI_PART="${EFI_PART:-$DEFAULT_EFI_PART}"
TARGET="${TARGET:-/mnt}"
export TARGET

# ---------- modules ----------
# shellcheck source=lib/tui.sh
source "$INSTALLER_DIR/lib/tui.sh"
# shellcheck source=lib/partition.sh
source "$INSTALLER_DIR/lib/partition.sh"
# shellcheck source=lib/bootstrap.sh
source "$INSTALLER_DIR/lib/bootstrap.sh"
# shellcheck source=lib/grub.sh
source "$INSTALLER_DIR/lib/grub.sh"
# shellcheck source=lib/postinstall.sh
source "$INSTALLER_DIR/lib/postinstall.sh"
# shellcheck source=lib/customizations.sh
source "$INSTALLER_DIR/lib/customizations.sh"

# ---------- run ----------
banner() {
    cat <<'EOF'

  ╔══════════════════════════════════════════════════════════════╗
  ║                  Void Linux Installer (xps9700)              ║
  ║   target: btrfs on a single partition, dual-boot Windows     ║
  ║   desktop: cinnamon | docker | vscode | nvidia PRIME         ║
  ╚══════════════════════════════════════════════════════════════╝
EOF
}

main() {
    banner
    log "starting installer (UNATTENDED=${UNATTENDED:-0}, TEST_MODE=${TEST_MODE:-0})"

    tui_select_install_target
    setup_filesystems
    bootstrap_base
    generate_fstab
    mount_pseudo_fs

    configure_system
    configure_users
    configure_ssh_config
    configure_nvidia_prime
    configure_zram
    configure_nix
    [[ "${DESKTOP:-cinnamon}" != "niri" ]] && install_vscode_real
    install_customizations
    enable_services
    install_grub
    reconfigure_all

    unmount_target

    ok "Installation complete."
    log "Log file: $LOG_FILE"
    if [[ "${TEST_MODE:-0}" != "1" && "${UNATTENDED:-0}" != "1" ]]; then
        if confirm "Reboot now?"; then
            systemctl reboot 2>/dev/null || reboot
        fi
    fi
}

main "$@"